JEE Main 2018 — Circle Question with Solution
JEE Main 2018 (15 Apr Shift 2 Online)
Question
The tangent to the circle at the point cuts off a chord of length 4 from a circle whose centre is . The radius of is
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Here, equation of tangent on at is:
Or
If it cuts off the chord of the circle then
the equation of the chord is:
distance of the chord from is :
Also, length of the chord is
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Circle chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2018, covering the Circle chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.